$fn=64;

// Parameters
bin_height = 24;          // 2-unit height
outer_radius = 25;        // Outer radius (center to corner)
wall_thickness = 2;       // Wall thickness
base_thickness = 2;       // Bottom base thickness

difference() {
    // Outer hexagonal body
    cylinder(h=bin_height, r=outer_radius, $fn=6);
    
    // Inner hollow cavity for small parts
    // Translated up by base_thickness and height extended to ensure a clean cut
    translate([0, 0, base_thickness])
        cylinder(h=bin_height - base_thickness + 1, r=outer_radius - wall_thickness, $fn=6);
}